Lamp replacer



Feb. 25, 1930. E ANTON 1,748,251

LAMP REPLACER I Filed July 51, 1926 il l lllllllmlllll Patented Feb. 25, 1930 UNITED STATES mreur orrice EMROY E. sTANToN, or HUNTINGTON, MAs'saciIUsnT s, ASSIGNOR, BY MESNE AS- SIGNMENTS, o LINE MATERIAL COMPANY, or SOUTH MILWAUKEE, wIsooNsrN,

. A CORPORATION OF DELAWARE LAMP REPLACER Application filed July 31, 1928. semi Na, 126,179;

This invention relates to certain new and I useful improvements in lamp replacers and refers more partlcularly to a devlce for removing and replacing electric lamp sockets and' bulbs of that type commonly used in street lighting and in which the bulb is threaded into a detachable plug.

' Avaried assortment of devices have been designed to accomplish this end, all of which, however, include numerous small unreliable springs and other complications. It, therefore, is an object of this invention to provide a device for removing and replacing lamp bulbs and sockets located out of reach in which all of the component parts are ruggedly and simply constructed.

This invention has as another object the provision of a device for removing or replacing lamp bulbs and sockets in which. the means for opening and closing the jaws thereof is substantially positive in operation.

A further object of this invention resides in the provision of a device of the character described having a single spring.

And a still further object of this invention resides in the provision of an operating member embodied in a device of the class described in which an apertured flange cooperates with extensions formed on the clamping arms of the device to positively actuate the arms.

With the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appendedv claim, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claim. I

In the accompanying drawing, I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in which:

jaws of the device being partly I Figure 3 is a cross sec 'tional view taken through Figure 2 on the plane of line 33.

Referring now more particularly to the accompanying drawing in which like numerals design-ate like parts throughout the several views, 5 represents a handle of any desiredlength, it being common practice to provide extensions for lengthening the same to suit the particular condition the device is used in. The upper end of the handle 5 is provided with a sleeve or collar 6 to reinforce the same and a head member 7 bored to receive the collared handle end, is secured thereto by a screw 8, see Figure 2.

A. plurality of sets of fork members or spaced lugs 9 are formed integral with the head 7, preferably three in number and equally spaced about the periphery of the head member, and alike number of clamping arms 10 are pivotally mounted one between eachset offork members 9, as at 11. The clamping arms are of a shape such that when taken collectively the space formed within them is substantially inverted pear shaped and large enough to allow the gripping jaws 12 carried at the upper extremities of the arms 10 to closeabout and grip a bulb near its base or a socket without having any portion of the arms 10 touching the bulb associated with the socket. 7 7

Each arm 10 has a downwardly extended and slightly outwardly directed extension 13 formed integral therewith below its pivot 11, and it will be evident that simultaneous movement of the extensions 13 towards and away the apertures and their relation to the extension is such that upward movement of the operating member causes the jaws 12 to close and downward movement thereof opens the jaws, a movementsubstantially the length of the extensions being sufficient to actuate the jaws from full closed position to full open position. One or more of the extensions has a stop 18 secured to its lower end to limit the downward movement of the operating member.

A relatively heavy coil spring 19 is coiled about a reduced portion 20 of the handle and is confined between the flange 16 and a screw or other stop 21 to normally yielclably urge the operating member upwardly to close the jaws. It will be noted that the opening and closing of the aws with respect to the operating member is positive and independent of any other means or device. Downward movement of the operating member to open the jaws is effected by tension applied manually on a cord or other means 22 secured. to the outer end of a lever 23 pivoted at its inner end 25 to the handle, as at 24. Spaced link mem bers 25 connected at their lower ends to the lever 23 at a medial point 26, and at their upper ends to the operating member through apertures 27 formed in the flange 16, impart the downward tension on the cord 22 to the operating member against the action of the spring 10 to open the jaws.

The application of the device is extremely simple, it being necessary onlyto apply a tension on the cord to open the jaws, engage the same over the lamp and release the tension on the cord to close the j aws around the lamp socket when the same may be pulled out of its socket.

While the above description has been confined to the use of my improved device as a lamp replacer, it'will be readily apparent that it may-also be employed as a primary fuse cut-out plug puller, or in any other place where it will function satisfactorily.

What I claim as my invention is:

A device of the class described, comprising a handle, clamping arms pivotally secured to the handle, extensions formed on the clamping arms, a spool member slidably mounted on the handle and having any upper and a lower flange, the upper flange having aper- V tures in which the clamping arm extensions are slidable, means yieldably urging the spool member in one direction to close the clamping arms and means connected with the lower flange for moving the spool member in its other direction against the action of its urging means; to open the clamping arms.

In testimony whereof I afiix my signature.

EMROY E. STANTON. 

